The diagram below shows four columns that represent rocks from different geographic regions. Each layer within a column represents a brief period of time. Which of the four fossils would be the most useful as a reference to determine the age of newly discovered fossils? Why? See image.

Q: What are the two main types of minerals?

A: All matter is made up of different elements and compositions. Certain chemical elements bond to form...

Q: Which of the following regarding renewable energy sources is true? Ocan compete with fossil fuels to...

A: Renewable Sources of Energy Renewable sources of energy are those, which have potential to generate ...

Q: currently waste systems are not aligning their design with ecological systems  a. true  b. false

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Q: erosion is the  removal of material from one place to another by wind or water loss of soil quality...

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Q: Tides are the rise and fall of sea levels, mainly caused by the effect of gravitational force exerte...

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Q: What do we mean by ecosystem? Is the biosphere an ecosystem?

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Q: 1. Which of the following phrases best defines tundra? A a mountainous region outside the Arctic Ba ...

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Q: Calculate the period of revolution of a hypothetical planet that is 16 AUs from the sun.

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Q: Can you explain the matching magnetic alignments seen south of Iceland (as shown)?

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Q: This is earth science question. A parcel of unsaturated air contains a mixture of dry air and water ...

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Q: The ocean floor is one big flat, featureless plain. True or false?

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Q: I see that there is 100 times more oxygen in the atmosphere than in the ocean. How can that be? Isn’...

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Q: When does ecliptic path crosse the Celestial Equator in two places?     June 21st- December 21...

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